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|---|---|---|
 0001193125-20-076177-index-headers.html | 2020-03-17 17:55:20 | |
| 0001193125-20-076177-index.html | 2020-03-17 17:55:20 | |
| 0001193125-20-076177.txt | 2020-03-17 17:55:20 | |
 0001193125-20-076177-xbrl.zip | 67023 | 2020-03-17 17:55:20 |
 BarChart1.png | 10164 | 2020-03-17 17:55:20 |
 BarChart2.png | 20261 | 2020-03-17 17:55:20 |
| d820252d497.htm | 5099 | 2020-03-17 17:55:20 |
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| isi-20200302.xml | 101287 | 2020-03-17 17:55:20 |
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| isi-20200302_cal.xml | 4793 | 2020-03-17 17:55:20 |
| isi-20200302_def.xml | 400849 | 2020-03-17 17:55:20 |
| isi-20200302_lab.xml | 149092 | 2020-03-17 17:55:20 |
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| R1.htm | 18241 | 2020-03-17 17:55:20 |
| R13.htm | 177076 | 2020-03-17 17:55:20 |
| R14.htm | 7476 | 2020-03-17 17:55:20 |
| R2.htm | 86440 | 2020-03-17 17:55:20 |
| R7.htm | 168212 | 2020-03-17 17:55:20 |
| R8.htm | 88783 | 2020-03-17 17:55:20 |
| report.css | 2767 | 2020-03-17 17:55:20 |
| Show.js | 1085 | 2020-03-17 17:55:20 |